Fault Code 18

Fault code 18

Lumbar pressure sensor - open circuit

Diagnostic conditions
- Ignition on
- Switch for memory seat adjustment actuated

Possible cause of fault
- Short circuit to ground/open circuit in pressure sensor supply lead
- Pressure sensor faulty
- Control module faulty

Affected terminals
Plug 9, pins 1, 2 and 3

Diagnosis/troubleshooting